Even at that, the elapsed time is off. It won't be perfectly in sync with the other two values.

And sometimes one wants to reset whilst driving. In the old days, one would simply push a button on the dash, and job done! Now I have to push and scroll and hold, and do that three times. It's a laughable approach.

in the old days your car didn't track mpg or trip time on the dash just miles. You havn't moved so 0 miles travelled so it is in sync with the time. and the mpg has what 5 seconds at 0mpg.